HttpUploadServerHandler.java 文件源码

private HttpResponseStatus readFileUploadData() throws IOException {
    while (decoder.hasNext()) {
        final InterfaceHttpData data = decoder.next();
        if (data != null) {
            try {
                logger.info("BODY FileUpload: " + data.getHttpDataType().name() + ": " + data);
                if (data.getHttpDataType() == HttpDataType.FileUpload) {
                    final FileUpload fileUpload = (FileUpload) data;
                    if (fileUpload.isCompleted()) {
                        requestProcessed = true;
                        final String format = ImageStoreUtil.checkTemplateFormat(fileUpload.getFile().getAbsolutePath(), fileUpload.getFilename());
                        if (StringUtils.isNotBlank(format)) {
                            final String errorString = "File type mismatch between the sent file and the actual content. Received: " + format;
                            logger.error(errorString);
                            responseContent.append(errorString);
                            storageResource.updateStateMapWithError(uuid, errorString);
                            return HttpResponseStatus.BAD_REQUEST;
                        }
                        final String status = storageResource.postUpload(uuid, fileUpload.getFile().getName());
                        if (status != null) {
                            responseContent.append(status);
                            storageResource.updateStateMapWithError(uuid, status);
                            return HttpResponseStatus.INTERNAL_SERVER_ERROR;
                        } else {
                            responseContent.append("upload successful.");
                            return HttpResponseStatus.OK;
                        }
                    }
                }
            } finally {
                data.release();
            }
        }
    }
    responseContent.append("received entity is not a file");
    return HttpResponseStatus.UNPROCESSABLE_ENTITY;
}